Yeah, I realize the description is pretty subjective, it's written from the pov of the authors who are from some random Russian forum so it's not like there is anything researched here, just opinions.
So I realize my rant was just that: a rant. Tbh I've tried getting with one ESI, but it didn't work out...though I tried. It was complicated because she spoke very kindly to me, and sometimes casually flirty but appearantly not interested romantically. I mean, I'm fine with that but as an Fi dom you guys have to understand how difficult it is for a Te dom to discern what is unspoken...because even the different possibilties enter my mind (for ex: "she is interested, but is waiting for me to make the first move" vs "she isn't, she just doesn't tell me to not hurt my feelings" vs "she's playing games" etc) I can't really determine a person's intent in romantic relations: my own filter/bias/fears fog up the mirrors, so to speak.
I never asked her if she was interested in me romantically, though. One time a third person reported to me that she had said she couldn't date me because she was with her boyfriend at the time. Doesn't tell me anything about her feelings, though.
Actually, I sense deep down this girl did a good job of handling me if she wasn't interested because she was able to make me understand her intent without hurting me, she probably did the best she could to handle the situation.
But that is just one person. I admit my experience with ESIs in this matter somewhat limited, I don't know how accurate the OP "advice" is, and I agree with you that such advice isn't useful anyways, the best "strategy" is to be yourself.